Question # 1

SN2-reactions can be usually observed in

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Primary alkylı halide

secondary alkyl halide

Tertiary alkyl halide

Both A. and B

Which of the following is primary alkyl halide

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IsopropyI halide

Sec-butyl halide

Tert-buryi halide

Neo-pentyl halide

Formalin contains-------% alcohol.

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37

80

8

52

Which alcohol is most reactive towards sodium metal?

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Ter Butyl alcohol

n-Propyl alcolol

Isopropyl alcohol

Have same reactivity

Which one of the followings is resistant to oxidation under normal conditions

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Methyl alcohol

Acetaldehyde

Ethyl alcohol

Acetone

Acetaldchyde and ketone form addition product with

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Phenyl hydrazine

Hydroxylamine

Hydrazine

hydrogen cyanide

The number of resonating structures of phenoxide ion are

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3

5

6

4

Which reagent is responsible for the conversion of ketone to secondar alcohul

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NaAlH

NaBH4

Al

Red P

The rate of E1 reaction depends upon

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The concentration of substrate

The concentration of substrate as well as nucleophile

The concentration Nucleophilic

Nature of Catalyst

Which is a good nucleophile as well as a good leaving group?

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F-

Cl-

Br-

I-

Which compound is obtained hy the elimination reaction on bromoethane?

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Butene

Ethene

Propene

Propane

In the transition state of S2 mechanism reaction with alkyl halides, which of the following orbital hybridization is involved

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sp³

sp

sp²

dsp³

Formalin is used as:

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Fungicide

Germicide

Sterilizing of surgical instruments

All three

Chloroform (CHCl3) is?

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Primary alkyl halide

Secondary alkyl halide

Tertiary alkyl halide

a liquid

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